Seller notes

FMF developed the PowerCore 4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of ridingMuffler now anodized in GUN METAL GRAYAluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strengthRemovable spark arrestor includedIncludes FMF Powerbomb Head Pipe # 0442982010-2011YamahaYFZ 450 X 4x2--2009-2025YamahaYFZ 450R 4x2--...

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